Alright, let's work through 3991 times 9242 step by step
3991 × 9242 = 9242 × (3991)
+ 9242 × 1 resulting in 9242
+ 9242 × 90 giving us 831780
+ 9242 × 900 what gives us 8317800
+ 9242 × 3000 that equals 27726000

= 36884822
